Mixture and Alligation

1.		An alloy contains 2 parts bronze and 3 parts copper. How much part of mixture should be drawn out and replaced with bronze so that the ratio of bronze to copper gets reversed in new mixture?

2/5

1/3

1/4

3/10

2.		In a vessel, milk and water are mixed are in ratio 4 : 1 and in a second vessel, in the ratio 5 : 4. In what proportion these two mixtures are to be mixed to get a mixture containing milk and water in the ratio 2 : 1?

5 : 3

3 : 5

6 : 5

5 : 6

3.		A grocer buys two types of rice at Rs. 18 and Rs. 12 per kg respectively. In what proportion should these be mixed, so that by selling the mixture at Rs. 17.5 per kg, 25% may be gained?

2 : 1

3 : 2

2 : 3

1 : 2

4.		150 gm of sugar solution has 30% sugar in it. Then the quantity of sugar that should be added to the solution to make the quantity of the sugar 70% in the solution, is?

250 gms

240 gms

200 gms

300 gms

5.		From a container of wine, 15 litres of wine is taken and replaced with same quantity of water. This process is repeated two more time and the ratio of wine and water became 343:169. The initial amount of wine in the container was?

125 litres

100 litres

150 litres

120 litres

6.		A person mixes item A costing Rs. 30/kg with item B costing Rs. 5/kg, and produces a mixture which costs Rs. 12/kg. The ratio in which the person mixes items B and A is:

7 : 18

5 : 13

12 : 13

18 : 7

7.		In a container has 8 liters of milk. 2 liters of milk is removed and replaced with water. This process is repeated two times more. What amount of milk is present in the container (in litres)?

5.125

3.875

3.375

4

8.		A 60 litres vessel full of orange juice contains 40% orange pulp. A part of juice is replaced by another juice containing 19% orange pulp and now the percentage of orange pulp is found to be 26%. What quantity of juice is replaced?

26 litres

40 litres

36 litres

24 litres

9.		A tea merchant buys a kind of tea at Rs 8 per kg and he mixes it with another kind of tea at Rs 28 per kg. In what proportion must he mix the two kinds of teas so that the mixture is sold at Rs 23 per kg to gain 15%?

2:1

3:2

1:2

2:3

10.		250 liters of a mixture of milk and water contains in the ratio 3:2. How much water should now be added so that the ratio of milk and water becomes 3:4?

60 liters

75 liters

80 liters

100 liters